ipack/devices/ipoctal: add missing rx_enable = 1

There was a bug in the code when managing a GE IP-OCTAL-485 board. The RX would
be enabled but we have a wrong state in the rx_enable flag.

Then, if the user changes the terminal settings, RX would not be enabled again.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/ipack/devices/ipoctal.c

@@ -207,6 +207,7 @@ static void ipoctal_irq_channel(struct ipoctal_channel *channel)
 		if (channel->board_id == IPACK1_DEVICE_ID_SBS_OCTAL_485) {
 			iowrite8(CR_CMD_NEGATE_RTSN, &channel->regs->w.cr);
 			iowrite8(CR_ENABLE_RX, &channel->regs->w.cr);
+			channel->rx_enable = 1;
 		}
 	}